The same problems that plagued the foreclosure process — and prompted a multibillion-dollar settlement with big banks — are now emerging in the debt collection practices of credit card companies. As they work through a glut of bad loans, companies like American Express, Citigroup and Discover Financial are going to court to recoup their money….

Consumers across the country say they are being harassed into paying bills they don’t owe to a company that no longer exists. And it’s not the first time. Hollywood Video and its parent company, Movie Gallery, went out of business in 2010 and declared bankruptcy. About 3 million U.S. residents owed money to the firm…